The secret listeners
Subtitle: how the Y Service intercepted German codes for Bletchley Park
By: Sinclair McKay
Published: 2013
Language: eng
ISBN-13: 9781781310793
Subjects: World War, 1939-1945; Secret service; British Personal narratives; Great Britain. Royal Air Force. Y Service; Great Britain
Notes: Originally published: 2012.

Includes bibliographical references and index.